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Finding the Fourth Proportional to 701,422.70, 968,022.70 and 395,558.06

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Solution

The fourth proportional to 701,422.70, 968,022.70 and 395,558.06 is: 545,903.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,422.70 : 968,022.70 = 395,558.06 : x
  2. Step 2: Convert to fraction form
    701,422.70/968,022.70 = 395,558.06/x
  3. Step 3: Cross multiply
    701,422.70x = 968,022.70 × 395,558.06
  4. Step 4: Simplify right side
    701,422.70x = 382,909,175,418.95
  5. Step 5: Solve for x
    x = 382,909,175,418.95/701,422.70
  6. Step 6: Final answer
    x = 545,903.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.